1.报错背景
在ubuntu中，python3.8下pip3安装pytesseract，一直报错，如下：
error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
----------------------------------------
Command "/usr/bin/python3 -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-mcnfynsl/Pillow/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace(' ', ' ');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-8krn7_ph-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-build-mcnfynsl/Pillow/
如图：
2.解决方案
安装对应python版本的dev，即：
sudo apt-get install python3.8-dev